Marmot - Helium

Remarkably light and compact, the legendary Marmot Helium delivers impressive insulation. Use it as a three-plus-season bag to substantially reduce your load while backpacking and mountaineering. Features like a curved baffle design that reduces the shifting of down increase the comfort and warmth of this 800-fill-power goose down bag. This is one of the most versatile ultralight bags out there; it is so light and compact that it's easy to bring along on any adventure.